To celebrate the 20th anniversary of this emblematic wristwatch, F.P.Journe has developed a tourbillon whose cage is vertical, rather than the traditional horizontal cage.
“I designed this vertical tourbillon so that the tourbillon’s functions remain constant whether the watch lies flat or is placed on its band, and the amplitude is the same, whether using a deployant clasp or an ardillon buckle”.
This vertical tourbillon with remontoir d’égalité (constant-force device) and deadbeat second makes one revolution every 30 seconds. This is faster than the usual time of one minute, making the technical prowess even more visually astonishing. Surrounding the cage, a cone-shaped mirror-polished ring concentrates light, reflecting the tourbillon cage. A second reflector was created on the movement side to provide light around the tourbillon cage.
The 4N Gold bridges that form the dial are decorated with “Clous de Paris” guilloche, with for the first time an Grand Feu enamel hour dial at 3 o’clock.
The Tourbillon Souverain also features a 80-hour power reserve at 12 o’clock and small seconds at 6 o’clock; the remontoir d’égalité is placed at 7 o’clock. The 42 mm case is available in platinum or in 18k 6N Gold.